swoop

An instance, or the act of suddenly plunging downward.

"The quality of decision is like the well-timed swoop of a falcon which enables it to strike and destroy its victim. – Sun Tzu"

A sudden act of seizing.

A quick passage from one note to the next.

To fly or glide downwards suddenly; to plunge (in the air) or nosedive.

"The lone eagle swooped down into the lake, snatching its prey, a small fish."

To move swiftly, as if with a sweeping movement, especially to attack something.

"The dog had enthusiastically swooped down on the bone."

To fall on at once and seize; to catch while on the wing.

"A hawk swoops a chicken."